Beauchamp had married secondly Edmund Beaufort, 2nd Duke of Somerset, Margaret's stepbrother became Henry Beaufort, 3rd Duke of Somerset, Captain of the King's Body Guard in about 1463. In 1464 he changed sides, again, back to the Lancastrians, and was beheaded at the Battle of Hexham in 1464. Margaret's second husband Sir Thomas Borough was on the victorious Yorkist side at Hexham so possibly witnessed the beheading of his wife's stepbrother. At Denys's death Mary had borne him no children, and Mary went on to marry again, Sir Giles Capel. Mary's aunt Eleanor Ros (1449–1487) married in 1469 Sir Robert Manners, Admiral of England who fought for Richard III at the Battle of Bosworth, from which marriage descended the Dukes of Rutland who inherited Belvoir Castle in Rutland from the De Ros family via Eleanor. Mary's cousin Edmund de Ros, heir of her beheaded uncle Thomas, was restored in his barony by Henry VII on his accession in 1485, and resided possibly quite close to the Denys's at Elsinges, Enfield, Middlesex. Groom of the Stool to King Henry VII This office made its holder the King's closest courtier. The duties in the earliest days of this ancient post involved assisting the king in the performance in a decorous manner of his bodily function of excretion. Arrangements would have to be made for the custody of the stool itself (the word derives from Old English & Norse stul, signifying "chair", or piece of furniture for sitting on), provision of a suitable room for the use thereof, with curtains, hangings being provided. Washing equipment would also have been required: water, bowls, towel etc. Assistance would have been needed in undressing and re-dressing, bearing in mind the thick and valuable winter clothes worn by monarchs, replete with complex fastenings, which would need careful handling. Whether the function of the office involved intimate bodily cleaning must be questioned. The answer would seem to be affirmative. It is unlikely, as in the popular imagination, to have been a duty demanded by the king to boost his royal ego, rather a necessity to ensure the process was properly performed. Disposable paper tissue would only make its appearance several centuries later, cloth and water are likely to have been required. Clearly the office was one where the king would want to select a person in whose company he felt relaxed and comfortable. From this relationship grew the